Valve for pneumatic tires.



J. W. TAYLOR.

VALVE FOR PNEUMATIC TIRES. APPLICATION man NOV. 1. 1914.

Patented Jan. 9, 1917.

&

l/VI/E/VTOR JAMES Wharf/r 721mm BY W11 ATTORNEYS tion.

UNITED STATEg PATENT FFIQE.

JAMES WALTER TAYLOR, OF LANSING, MICHIGAN, ASSIGNOR 0F TWO-THIRDS T0GEORGE A. MOHR, 0F LANSING, MICHIGAN.

VALVE FOR PNEUMATIC TIRES.

Specification 01 Letters Patent.

Application filed November 7,1914. Serial No. 870,792.

To all whom it may concern:

Be it known that I, JAMns WALTER TAY- LoR, a citizen of the UnitedStates, and a resident of Lansing, in the county of Ingham and State ofMichigan, haveinvented an Improvement in Valves for Pneumatic Tires, ofwhich the following is a specifica- My present invention relatesgenerally to valves for pneumatic tires and is more particularly animprovement in the construction and arrangement thereof as shown in myPatent N 0. 1108640, dated August 25, 1914:, the objects of my inventionbeing to rearrange the parts shown in my patent in such manner as toprovide a compression joint in the path of air from the outer end of thevalve tube and at the same time enable certain of the parts to be moreeconomically constructed.

In the accompanying drawing wh ch illustrates my present improvements,Figure 1 is a side elevation illustrating their practical application.Fig. 2 is a central vertical section taken therethrough. Fig. 3 is adetail cross section taken therethrough substantially on line 33 of Fig.2, and

Fig. 4 is ga perspective view of the conical,

gasket removed.

Referring now to these figures, it will be seen that. the same parts arepresent as in my patent above referred to, namely a valve stem Aextending from the inner peripheral portion of a tire as indicated at B;a nut or bur C, an inner washer D, a tire rim E, a conical gasket F andthe thimble Gr.

In the present construction and arrangement of the parts, however, thenut or bur C which threads on the valve stem A is similarly formed :uponits opposite sides with annular grooves of substantially the same depth,the groove facing the rim E receiving the inner washer D and the otherand outer groove receiving the enlarged end of the conical gasket E. Itwill be further seen that the thimble in ,'the present arrangement andconstructiorii of the parts is provided in its inner end with a conicalbore which receives the smaller end of the conical gasket F whereby toform a compression joint between the outer end of the valve stem A,which is located within the thimble G, and the atmosphere. In thismanner I more effectively prevent the escape of air and at the same timeprovide for an identical formation of the nut or bur 0 upon both faces.This nut or bur may therefore be more economically manufactured inasmuchas both of its grooved faces may be machined at the same time which isnot possible where it is formed with a conical bore extending from oneside and an annular groove in its opposite face as in my patent abovereferred to.

In the present case the conical gasket as seen in Fig. 4 is providedwith flat internal portions which cooperate with flattened sides of thevalve stem A in order to defeat turning movement of the said gasket asthe thimble G is screwed tightly in position.

I claim The combination of a threaded valve tube, a nut or bur threadedon the said valve tube, and having similar annularly grooved inner andouter faces, a washer extending within the groove of the inner face ofthe said nut or bur and adapted to bear against a wheel rim and thelike, a conical gasket having its enlarged end projecting within thegroove of the outer face of the said nut or bur, and a thimble threadedupon the outer end of the said valve tube and inclosing the same, andhaving a conical bore at its inner end receiving the smaller end of thegasket whereby to form a compression joint between the said inclosed endof the valve tube and the atmosphere, the said grooved opposite faces ofthe saidnut or bur forming retaining rings to respectively prevent thegasket" and the washer from spreading.

JAMES WALTER TAYLOR. Witnesses:

Cnannns F. Haron'r, lPHonBn K. Pace.

